Ultra-Lightweight Design and Analysis of a 1.25m SiC Segmented Mirror

Abstract:

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In order to explore the feasibility of large ultra-lightweight deployable optical systems, a 1.25m SiC segmented mirror is investigated. According to analysis and comparison, the mirror's material, ultra-lightweight structure pattern and support location are determined respectively. By FEM, an ultra-lightweight structure with areal density of 40kg/m2 is gotten. The results show that the self-weight deformation is 4.8nm RMS/22.6nm PV under supports, and the ultra-lightweight mirror has the enough strength to bear the stress at launch. The study may provide a technical scheme to develop the large ultra-lightweight deployable optical system.

Info:

Periodical:

Advanced Materials Research (Volumes 230-232)

Edited by:

Ran Chen and Wenli Yao

Pages:

940-944

DOI:

10.4028/www.scientific.net/AMR.230-232.940

Citation:

C. M. Zeng et al., "Ultra-Lightweight Design and Analysis of a 1.25m SiC Segmented Mirror", Advanced Materials Research, Vols. 230-232, pp. 940-944, 2011

Online since:

May 2011

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Price:

$35.00

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